package xyf.p11.other;

/**
 * ClassName: P0048_Rotate
 * Description:
 * Author: xyf
 * Date: 9/17/22 8:19 AM
 * Version: 1.0
 **/
public class P0048_Rotate
{
    public void rotate(int[][] matrix)
    {
        int n = matrix.length;
        // 水平翻转
        for (int i = 0; i < n / 2; ++i)
        {
            for (int j = 0; j < n; ++j)
            {
                int temp = matrix[i][j];
                matrix[i][j] = matrix[n - i - 1][j];
                matrix[n - i - 1][j] = temp;
            }
        }
        // 主对角线翻转
        for (int i = 0; i < n; ++i)
        {
            for (int j = 0; j < i; ++j)
            {
                int temp = matrix[i][j];
                matrix[i][j] = matrix[j][i];
                matrix[j][i] = temp;
            }
        }
    }
}
